BIDDEFORD — A crew from the environmental services company Clean Harbors worked Saturday to clean up a 440-gallon diesel fuel spill at a Biddeford gas station.

The spill occurred because of a malfunction inside a diesel pump, said Ann Hemenway, an oil and hazardous material responder for the Maine Department of Environmental Protection.

The spill took place early Saturday afternoon and contaminated some snow around the pump, Hemenway said. Most of the fuel ran into a catch basin at the Route 1 station, operated by the Dead River Co.

Hemenway said the snow would be removed and the catch basin pumped out by the end of the day Saturday. She said the DEP would return Sunday to assess the extent of contamination in the ground and determine how to deal with it.

No one was injured in the incident.